ISPRS-Archives The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ISPRS-Archives Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. 2194-9034 Copernicus Publications Göttingen, Germany 10.5194/isprs-archives-XLI-B7-601-2016 LAND COVER CHANGE DETECTION USING SALIENCY ANDWAVELET TRANSFORMATION Zhang Haopeng 1 2 Jiang Zhiguo 1 2 Cheng Yan 3 Image Processing Center, School of Astronautics, Beihang University, Beijing, 100191, China Beijing Key Laboratory of Digital Media, Beijing, 100191, China 93707 PLA Troops, Zhangjiakou, Hebei, 075000, China 21 06 2016 XLI-B7 601 605 Copyright: © 2016 Haopeng Zhang et al. 2016 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://isprs-archives.copernicus.org/articles/XLI-B7/601/2016/isprs-archives-XLI-B7-601-2016.html The full text article is available as a PDF file from https://isprs-archives.copernicus.org/articles/XLI-B7/601/2016/isprs-archives-XLI-B7-601-2016.pdf

How to obtain accurate difference map remains an open challenge in change detection. To tackle this problem, we propose a change detection method based on saliency detection and wavelet transformation. We do frequency-tuned saliency detection in initial difference image (IDI) obtained by logarithm ratio to get a salient difference image (SDI). Then, we calculate local entropy of SDI to obtain an entropic salient difference image (ESDI). The final difference image (FDI) is the wavelet fusion of IDI and ESDI, and Otsu thresholding is used to extract difference map from FDI. Experimental results validate the effectiveness and feasibility.